/Engine/Source/Runtime/NavigationSystem/Public/NavigationSystemTypes.h
struct FNavigationInvoker
TWeakObjectPtr<...
Actor
float
GenerationRadius
Tiles GenerationRadius away or close will be generated if they're not already present
ENavigationInvo...
Priority
Invoker Priority used when dirtying tiles
float
RemovalRadius
Tiles over RemovalRadius will get removed.  needs to be >= GenerationRadius or will get clamped
FNavAgentSelect...
SupportedAgents
Restrict navigation generation to specific agents